Indeed, there is evidence that they, by feeding on oil-degrading bacteria, increase bacterial growth in much the same way that they enhance rates of decomposition in soils, thereby speeding up the breakdown of oil spillages.
Software synthesizes data from seismic tests and downhole sensors that measure temperature, pressure, porosity, viscosity and the percentage breakdown of oil, water and natural gas in the reservoir.
The best composition of the microemulsion system for the complete breakdown of oil emulsions with high BSW values had the lowest C/S phase percentage.
When oxygen levels drop low enough, the breakdown of oil grinds to a halt; and as it is depleted in the water, most life can't be sustained.
That in turn exerts an unfortunate ripple effect: when oxygen levels decrease, the breakdown of oil can't advance any further.
Representatives of the National Oceanic and Atmospheric Administration acknowledged that so much methane in the water could draw down oxygen levels and slow the breakdown of oil in the Gulf, but cautioned that research was still under way to understand the ramifications.
In industry, bacteria are important in sewage treatment and the breakdown of oil spills, the production of cheese and yogurt through fermentation, and the recovery of gold, palladium, copper and other metals in the mining sector, as well as in biotechnology, and the manufacture of antibiotics and other chemicals.
They contended that the government had overestimated rates of evaporation and breakdown of the oil.
The slow breakdown of deep oil that Dr. Camilli's group found had a silver lining: it meant that the bacteria trying to eat the oil did not appear to have consumed an excessive amount of oxygen in the vicinity of the spill, alleviating concerns that the oxygen might have declined so much that it threatened sea life.
The unintended effect was to destroy the resident microbial population that could have facilitated metabolic breakdown of the oil.
